Chaucer's Works, Volume 5 — Notes to the Canterbury Tales

by Geoffrey Chaucer

Qui perpetuo nixus solio

Rapidum caelum turbine uersas,

Legemque pati sidera cogis';

Boeth. Cons. Phil. lib. i. met. 5.

'Quique agili motu calet aetheris'; id. lib. iv. met. 1.

(See the same passages in vol. ii. pp. 16, 94).

To the original nine spheres, as above, was afterwards added a tenth or crystalline sphere; see the description in the Complaint of Scotland, ed. Murray (E. E. T. S.), pp. 47, 48. For the figure, see fig. 10 on Plate V., in my edition of Chaucer's Astrolabe (in vol. iii.).

Compare also the following passage:—

'The earth, in roundness of a perfect ball,

Which as a point but of this mighty all